Ozone integration.

ui/ozone/platform/drm/gpu/gbm_device.h

+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef UI_OZONE_PLATFORM_DRM_GPU_GBM_DEVICE_H_
+#define UI_OZONE_PLATFORM_DRM_GPU_GBM_DEVICE_H_
+
+#include "ui/ozone/platform/drm/gpu/drm_device.h"
+
+struct gbm_device;
+
+namespace ui {
+
+class GbmDevice : public DrmDevice {
+ public:
+  GbmDevice(const base::FilePath& device_path, base::File file);
+
+  gbm_device* device() const { return device_; }
+
+  // DrmDevice implementation:
+  bool Initialize(bool use_atomic) override;
+
+ private:
+  ~GbmDevice() override;
+
+  gbm_device* device_ = nullptr;
+
+  DISALLOW_COPY_AND_ASSIGN(GbmDevice);
+};
+
+}  // namespace ui
+
+#endif  // UI_OZONE_PLATFORM_DRM_GPU_GBM_DEVICE_H_